The medical charity, MSF, has warned of outbreaks of measles in South Sudan and Yemen.
It said that there had been seven deaths and more than 450 cases among children under five since February in South Sudan’s Western Equatoria state.
MSF said that its hospital unit in Taiz Houban, Yemen had received around 1,500 measles patients in recent months.
It said low vaccination rates and difficult access to primary healthcare were major factors in the outbreaks.